1MHz 100 Gain Amplifier (CB6650E)

Found in 1968 documentation this amplifier can be designed based on current transistors. Observe the symmetrical power supply.

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600 ohms line Amplifier (CB16795E)
This circuit uses a 741 operational amplifier that must be powered by a symmetrical source of 6 to...
High Voltage Power Supply (CB1223E)
This small inverter came out in an Argentine magazine from the 1970s. It can also be assembled with...
Thermometer for 5V operation with (CB8711E)
Found in a 90s 303 Circuits, this circuit uses the KTY10 sensor, widely used at the time. | Clique na...